{"id":1653,"date":"2015-03-11T10:22:37","date_gmt":"2015-03-11T15:22:37","guid":{"rendered":"https:\/\/www.mwent.net\/?p=861"},"modified":"2020-11-16T15:01:56","modified_gmt":"2020-11-16T21:01:56","slug":"how-loud-is-too-loud","status":"publish","type":"post","link":"https:\/\/mwent.net\/how-loud-is-too-loud\/","title":{"rendered":"How Loud Is Too Loud?"},"content":{"rendered":"
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Think twice the next time you pump up the volume on your iPhone to drown out the chatter of those neighboring commuters.<\/p>\n
Experts say listening to music at high volumes using earbuds or headphones for more than an hour\u2014and in some cases, as little as a few minutes\u2014could put you at risk for noise-related hearing loss.
\nThe World Health Organization in a new campaign advises limiting the use of personal audio devices to less than an hour a day, or for longer periods if kept at a volume of less than 85 decibels, roughly equivalent to the beep of a microwave.<\/p>\n
The recommendation is based on the WHO\u2019s review of previous studies estimating that people use personal audio devices at an average of 94 decibels, said Shelly Chadha, technical officer of the WHO department for management of noncommunicable diseases, disability, violence and injury prevention.
\nAt 100 decibels, listening should be limited to 15 minutes. But by reducing the volume to 80 decibels or less, a person can safely listen to headphones for long as desired, said Dr. Chadha. Apple and most other makers of personal audio devices don\u2019t provide decibel equivalents for the volume controls on their devices. Maximum volume varies depending on products and headphones. Some experts say the most effective way to reduce the risk of hearing damage is to wear noise-canceling headphones, which block out background noise so that users can listen at lower volumes when in a noisy environment such as an airplane.<\/p>\n
In a 2011 study published in the Journal of American Academy of Audiology, researchers evaluated output levels of audio devices and determined that a person using the white earbuds that come with Apple products and setting the volume on an iPod at maximum experiences a sound level of 102 decibels.
\nAt that level, safe listening is limited to about five minutes, said Cory Portnuff, a clinical audiologist at the University of Colorado Hospital and a co-author of the study.
\nSome experts say the WHO recommendations are a bit too restrictive, and its estimate that 50% of young adults are exposed to potentially unsafe levels of sound from their personal audio devices may be an overstatement.<\/p>\n
In a 2013 study, this one published in the International Journal of Audiology, Dr. Fligor and Dr. Portnuff found that of 24 adolescents ages 18 to 29, only 16% were listening to personal listening devices at levels that raised their risk of cumulative hearing loss.
\n\u201cVolume level and listening time are inextricably combined,\u201d said Brian Fligor, a Boston audiologist and another co-author of the 2011 and 2013 studies, as well as chief audiology officer at Lantos Technology, Inc., an audiology device company, who has published numerous studies on personal listening devices. \u201cYou can listen really loud for short periods of time safely.\u201d
\n\u201cI take my favorite song at the end of my run and I crank it to the max. But it\u2019s only one song,\u201d Dr. Fligor said. He recommends keeping the volume on a device no higher than 80% of maximum, or about 89 decibels, for 90 minutes of safe listening.<\/p>\n